EP 1160533 A1 20011205 - Electro-pyrotechnic initiator having a thin layer ignition bridge and low energy requirement
Title (en)
Electro-pyrotechnic initiator having a thin layer ignition bridge and low energy requirement
Title (de)
Elektropyrotechnischer Zünder mit Dünnschichtzündbrücke und niedrigem Energiebedarf
Title (fr)
Initiateur électro-pyrotechnique à pont en couche mince et à très basse énergie de fonctionnement
Publication
Application
Priority
FR 0006926 A 20000530
Abstract (en)
The two electrodes of the initiator device are interconnected by two conductive metal layers in the surface of an insulator, with a resistor heating element between the two layers. An electropyrotechnic device comprises : (i) a container with a brittle wall and sealed by a body mass of height h which has an upper plane surface at the interior of the container and is electrically insulating ; (ii) two electrodes in the form of a fork which traverse the solid body ; and (iii) an electric circuit comprising thin layer deposits on a non-conductive support fixed to the upper face. The circuit is connected to the electrodes and comprises a thin layer resistive heating element, and is covered by a pyrotechnic initiator composition. The support has a thermal conductivity less than 20 mW/cm. degrees C. The resistive heating element has a thickness less than 1 x 10<-6> m. The pyrotechnic composition consists of a binder and a primary explosive with a particle size between 1 x 10<-6> and 30 x 10<-6>.
IPC 1-7
IPC 8 full level
F42C 11/04 (2006.01); B60R 21/26 (2006.01); F42B 3/13 (2006.01)
CPC (source: EP KR US)
F42B 3/13 (2013.01 - EP KR US)
Citation (applicant)
- US 3572247 A 19710323 - WARSHALL THEODORE
- US 5798476 A 19980825 - BAILEY TODD R [US]
- US 4729315 A 19880308 - PROFFIT ROBERT L [US], et al
Citation (search report)
- [Y] DE 19732380 A1 19990211 - TELEFUNKEN MICROELECTRON [DE], et al
- [Y] US 5576509 A 19961119 - REFOUVELET JOSEPH [FR], et al
- [A] WO 9828792 A1 19980702 - SCB TECHNOLOGIES INC [US]
- [A] WO 9624024 A1 19960808 - QUANTIC IND INC [US]
- [A] FR 2781878 A1 20000204 - GIAT IND SA [FR]
- [A] WO 9825100 A1 19980611 - INT RESISTIVE CO [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1160533 A1 20011205; EP 1160533 B1 20041020; AT E280382 T1 20041115; BR 0102151 A 20020213; CN 1326878 A 20011219; DE 60106519 D1 20041125; DE 60106519 T2 20051201; ES 2228766 T3 20050416; FR 2809806 A1 20011207; FR 2809806 B1 20030110; JP 2002013900 A 20020118; KR 20010110110 A 20011212; US 2002002924 A1 20020110; US 6640718 B2 20031104
DOCDB simple family (application)
EP 01401108 A 20010427; AT 01401108 T 20010427; BR 0102151 A 20010528; CN 01119341 A 20010530; DE 60106519 T 20010427; ES 01401108 T 20010427; FR 0006926 A 20000530; JP 2001162908 A 20010530; KR 20010029351 A 20010528; US 84628501 A 20010502